:root {
  color-scheme: dark;
  --bg:#0d1424;
  --surface:#161f32;
  --surface-soft:#1c2940;
  --text:#edf4ff;
  --muted:#a3b2c9;
  --border:#34445e;
  --p1:#55d6cf;
  --p2:#ff91ac;
  --p1-fill:#55d6cf20;
  --p2-fill:#ff91ac20;
  --dot:#e7efff;
  --idle:#687b98;
  --safe:#65dfa0;
  --scoring:#ffd17c;
  --accent:var(--p1);
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    "Segoe UI",
    sans-serif;
}
body[data-theme=paper] {
  color-scheme: light;
  --bg:#f7f2e8;
  --surface:#fffdf7;
  --surface-soft:#eee6d7;
  --text:#292b32;
  --muted:#5f6067;
  --border:#cec5b5;
  --p1:#1954b9;
  --p2:#ac2843;
  --p1-fill:#1954b916;
  --p2-fill:#ac284316;
  --dot:#3e3c3a;
  --idle:#8c8375;
  --safe:#157640;
  --scoring:#965100;
}
body[data-theme=purple] {
  --bg:#171126;
  --surface:#241b38;
  --surface-soft:#302446;
  --border:#564467;
  --p1:#c69bff;
  --p2:#68e6b0;
  --p1-fill:#c69bff20;
  --p2-fill:#68e6b020;
}
body[data-theme=sunset] {
  --bg:#231a24;
  --surface:#322330;
  --surface-soft:#432e3b;
  --border:#654655;
  --p1:#ffcc79;
  --p2:#b1b1ff;
  --p1-fill:#ffcc7920;
  --p2-fill:#b1b1ff20;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  background-image:
    radial-gradient(
      circle at 50% 15%,
      var(--p1-fill),
      transparent 50%);
}
button,
input,
select {
  font: inherit;
}
button,
select,
input {
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 11px 14px;
  min-height: 44px;
}
button {
  cursor: pointer;
  font-weight: 650;
  touch-action: manipulation;
}
button:hover {
  background: var(--surface-soft);
}
button:disabled {
  opacity: .45;
  cursor: not-allowed;
}
button:focus-visible,
select:focus-visible,
input:focus-visible,
a:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
}
.primary {
  color: var(--bg);
  background: var(--accent);
  border-color: var(--accent);
}
.primary:hover {
  filter: brightness(1.12);
  background: var(--accent);
}
.outline {
  background: transparent;
}
.app-shell {
  max-width: 1000px;
  margin: auto;
  padding: 26px 32px;
}
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}
.brand {
  display: flex;
  gap: 12px;
  align-items: center;
  color: var(--text);
  text-decoration: none;
  font-weight: 800;
  font-size: 21px;
}
.brand svg {
  width: 38px;
  height: 38px;
  flex-shrink: 0;
  fill: var(--dot);
  stroke: var(--p1);
  stroke-width: 2.5;
}
.brand svg path {
  fill: var(--p1-fill);
}
nav {
  display: flex;
  gap: 6px;
}
nav button {
  font-size: 13px;
  background: transparent;
  border-color: transparent;
}
.intro {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 20px;
  margin: 36px 0 26px;
}
.eyebrow {
  color: var(--p1);
  font-size: 10px;
  letter-spacing: .18em;
  font-weight: 750;
  margin: 0 0 10px;
}
h1 {
  font-size: clamp(23px, 4vw, 34px);
  letter-spacing: -.04em;
  margin: 0;
  line-height: 1.15;
}
.preferences {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.preferences select,
.preferences button {
  font-size: 12px;
  padding: 9px 10px;
}
.scoreboard {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 18px;
}
.player {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: var(--surface);
  transition: border-color .2s;
  min-width: 0;
}
.player-one {
  --player:var(--p1);
  --fill:var(--p1-fill);
}
.player-two {
  --player:var(--p2);
  --fill:var(--p2-fill);
}
.player.active {
  border-color: var(--player);
  background:
    linear-gradient(
      110deg,
      var(--fill),
      transparent),
    var(--surface);
}
.avatar {
  background: var(--fill);
  border: 1px solid var(--player);
  border-radius: 12px;
  color: var(--player);
  font-weight: 800;
  font-size: 13px;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.player-copy {
  flex: 1;
  min-width: 0;
}
.player h2 {
  font-size: 14px;
  overflow-wrap: anywhere;
  margin: 0 0 6px;
}
.player span {
  font-size: 11px;
  color: var(--muted);
}
.player strong {
  font-size: 36px;
  color: var(--player);
  font-variant-numeric: tabular-nums;
}
.table {
  border: 1px solid var(--border);
  border-radius: 22px;
  background: var(--surface);
  padding: 22px 26px;
  position: relative;
  box-shadow: 0 20px 55px #00000015;
}
.table-heading {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  font-size: 13px;
}
.turn-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
}
.turn-indicator:before {
  content: "";
  width: 7px;
  height: 7px;
  background: var(--turn-color,var(--p1));
  border-radius: 50%;
}
.small,
.progress-row,
.timer-label {
  color: var(--muted);
  font-size: 11px;
}
.board-wrap {
  max-width: 460px;
  aspect-ratio: 1;
  margin: 8px auto;
}
#board {
  width: 100%;
  height: 100%;
  overflow: visible;
  user-select: none;
}
#board .edge {
  stroke: var(--idle);
  stroke-width: 2.5;
  stroke-linecap: round;
  pointer-events: none;
}
#board .edge.owner-1 {
  stroke: var(--p1);
  stroke-width: 5;
}
#board .edge.owner-2 {
  stroke: var(--p2);
  stroke-width: 5;
}
#board .edge.safe {
  stroke: var(--safe);
  stroke-width: 3;
  stroke-dasharray: 8 6;
}
#board .edge.scoring {
  stroke: var(--scoring);
  stroke-width: 4;
  stroke-dasharray: 2 6;
}
#board .edge-group:not(.occupied):not([aria-disabled=true]):hover .edge {
  stroke: var(--turn-color);
  stroke-width: 5;
  stroke-dasharray: none;
}
#board .hit {
  fill: transparent;
  pointer-events: all;
  cursor: pointer;
}
#board [aria-disabled=true] .hit {
  cursor: default;
}
#board .edge-group:focus {
  outline: none;
}
#board .edge-group:focus-visible .focus-ring {
  stroke: var(--text);
  stroke-width: 12;
  opacity: .7;
  stroke-dasharray: 2 5;
}
#board .focus-ring {
  stroke: transparent;
  pointer-events: none;
}
#board .dot {
  fill: var(--dot);
  pointer-events: none;
}
#board .box {
  stroke-width: 1;
  pointer-events: none;
}
#board .box.owner-1 {
  fill: var(--p1-fill);
  stroke: var(--p1);
}
#board .box.owner-2 {
  fill: var(--p2-fill);
  stroke: var(--p2);
}
#board .box-label {
  font-weight: 800;
  font-size: 17px;
  text-anchor: middle;
  dominant-baseline: middle;
  pointer-events: none;
}
#board .box-label.owner-1 {
  fill: var(--p1);
}
#board .box-label.owner-2 {
  fill: var(--p2);
}
.progress-row,
.timer-label {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
}
progress {
  display: block;
  width: 100%;
  height: 5px;
  border: 0;
  border-radius: 10px;
  overflow: hidden;
  background: var(--surface-soft);
  accent-color: var(--p1);
}
progress::-webkit-progress-bar {
  background: var(--surface-soft);
}
progress::-webkit-progress-value {
  background: var(--p1);
  border-radius: 10px;
}
progress::-moz-progress-bar {
  background: var(--p1);
}
#timer-wrap {
  margin-top: 14px;
}
#timer-progress {
  accent-color: var(--scoring);
}
#timer-progress::-webkit-progress-value {
  background: var(--scoring);
}
.legend {
  font-size: 11px;
  color: var(--muted);
  margin: 14px 0 0;
}
.actions {
  display: flex;
  gap: 10px;
  margin-top: 16px;
}
.actions .primary {
  margin-left: auto;
}
.keyboard-help {
  font-size: 11px;
  color: var(--muted);
  text-align: center;
  margin: 20px 0 0;
  line-height: 1.6;
}
.announcement {
  min-height: 24px;
  text-align: center;
  font-size: 13px;
  color: var(--p1);
  margin: 8px 0 0;
}
footer {
  text-align: center;
  font-size: 10px;
  color: var(--muted);
  padding: 18px 0 6px;
}
dialog {
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 26px;
  width: min(520px, calc(100% - 28px));
  max-height: 90dvh;
  overflow: auto;
  box-shadow: 0 30px 120px #0005;
}
dialog::backdrop {
  background: #050912b8;
  backdrop-filter: blur(6px);
}
dialog h2 {
  font-size: 23px;
  letter-spacing: -.03em;
  margin: 0;
  line-height: 1.3;
}
.dialog-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.icon-close {
  font-size: 25px;
  padding: 4px 12px;
  flex-shrink: 0;
}
.muted {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin: 24px 0;
}
.form-grid label {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 12px;
  color: var(--muted);
  min-width: 0;
}
.form-grid input,
.form-grid select {
  width: 100%;
}
.dialog-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 24px;
}
.dialog-actions button {
  font-size: 12px;
}
.rules {
  padding-left: 22px;
  font-size: 14px;
  line-height: 1.7;
}
.rules li {
  padding-left: 7px;
  margin: 18px 0;
}
.rules li::marker {
  color: var(--p1);
  font-weight: bold;
}
.full {
  width: 100%;
}
.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 24px;
}
.stats-grid div {
  background: var(--surface-soft);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.stats-grid span {
  font-size: 11px;
  color: var(--muted);
}
.stats-grid strong {
  font-size: 28px;
  color: var(--p1);
}
#result-dialog {
  text-align: center;
}
.result-mark {
  font-size: 70px;
  color: var(--p1);
  margin-bottom: 14px;
}
#result-score {
  color: var(--muted);
}
.notice {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  margin-bottom: 15px;
  font-size: 12px;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
[hidden] {
  display: none !important;
}
.celebrating .result-mark {
  animation: celebrate .8s ease-out;
}
@keyframes celebrate {
  from {
    transform: scale(.4) rotate(-40deg);
    opacity: 0;
  }
  to {
    transform: scale(1) rotate(0);
    opacity: 1;
  }
}
@media (max-width: 700px) {
  .app-shell {
    padding: 20px;
  }
  .intro {
    align-items: flex-start;
    flex-direction: column;
    margin: 26px 0 20px;
  }
  .preferences {
    justify-content: flex-start;
  }
  .topbar {
    gap: 10px;
    flex-wrap: wrap;
  }
  .brand {
    font-size: 19px;
  }
  .topbar nav {
    margin-left: auto;
  }
  .player {
    padding: 14px 12px;
    gap: 10px;
  }
  .player strong {
    font-size: 30px;
  }
  .avatar {
    width: 32px;
    height: 36px;
    font-size: 11px;
  }
  .table {
    padding: 18px;
  }
  .scoreboard {
    gap: 10px;
  }
  .player h2 {
    font-size: 12px;
  }
}
@media (max-width: 380px) {
  .app-shell {
    padding: 14px;
  }
  .topbar nav {
    margin-left: 0;
    width: 100%;
    justify-content: space-between;
  }
  .player {
    gap: 7px;
  }
  .avatar {
    display: none;
  }
  .actions button {
    padding: 10px;
    font-size: 12px;
  }
  .form-grid {
    grid-template-columns: 1fr;
  }
  .dialog-actions {
    flex-wrap: wrap;
  }
  .preferences {
    gap: 6px;
  }
  .preferences select,
  .preferences button {
    font-size: 11px;
    padding: 8px;
  }
  .table {
    padding: 14px;
  }
  .table-heading {
    font-size: 11px;
  }
}
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}
body {
  --accent:var(--p1);
}
.room-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin: 0 0 18px;
  padding: 16px;
  border: 1px solid var(--p1);
  border-radius: 16px;
  background: var(--surface);
}
.room-banner strong {
  font-size: 13px;
  color: var(--p1);
}
.room-banner p {
  font-size: 12px;
  color: var(--muted);
  margin: 6px 0 0;
}
.room-banner button {
  font-size: 12px;
  flex-shrink: 0;
}
.room-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 16px 0;
  font-size: 12px;
  color: var(--muted);
}
.room-field input,
.room-field select {
  width: 100%;
  min-width: 0;
}
#invite-qr {
  display: block;
  margin: 20px auto;
  background: white;
  border-radius: 12px;
  max-width: 100%;
  height: auto;
}
#invite-link {
  font-size: 11px;
}
.room-divider {
  border-top: 1px solid var(--border);
  padding-top: 20px;
  margin: 20px 0;
  color: var(--muted);
  font-size: 12px;
}
.room-message {
  font-size: 13px;
  color: var(--p1);
  overflow-wrap: anywhere;
  min-height: 20px;
}
.topbar nav {
  flex-wrap: wrap;
  justify-content: flex-end;
}
@media (max-width: 480px) {
  .topbar nav {
    justify-content: flex-start;
    margin-left: 0;
  }
  .room-banner {
    align-items: flex-start;
    flex-direction: column;
  }
  .room-banner button {
    width: 100%;
  }
}